Lake Sammamish Half Marathon

MAR
6-7
2027
A USATF certified point to point half marathon from Redmond to Lake Sammamish on a mostly paved flat course with aid stations, pacers, shuttles and a virtual option.
6-7 Mar 2027
Half Marathon

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Lake Sammamish Half Marathon

The Lake Sammamish Half is a USATF certified point to point half marathon organized by Orca Running and presented with Brooks and REI. The course runs from the Redmond Marymoor Park / City Hall area to Lake Sammamish State Park in Issaquah. The route is described as flat and fast, running on an interurban trail that is approximately 70% paved and 30% smooth gravel.

Aid stations are placed roughly every 2 to 3 miles and are stocked with water, GU energy gels, and Tailwind endurance fuel. Pacers from the Seattle Green Lake Running Group are provided for a range of target finish times. Because the trail is narrow for the first mile, the field starts in multiple waves separated by short intervals. Free shuttles transport participants from the finish back to the start; a pre-race shuttle is also offered but has limited capacity and requires pre-registration.

All participants receive a Brooks Podium tech shirt; finishers receive a medal and custom bib. The event is run cupless to reduce waste, so participants are encouraged to use a handheld bottle, hydration pack, or a small reusable cup. Awards are given to the top three overall men, women, and non-binary finishers by gun time, with age group awards in five year increments available at the race. Youth and senior discounts apply for certain age groups. The event acknowledges that it takes place on the Indigenous land of the Coast Salish peoples, specifically the Snoqualmie Tribe sdukʷalbixʷ. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
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